<!--
 * Tencent is pleased to support the open source community by making BK-JOB蓝鲸智云作业平台 available.
 *
 * Copyright (C) 2021 THL A29 Limited, a Tencent company.  All rights reserved.
 *
 * BK-JOB蓝鲸智云作业平台 is licensed under the MIT License.
 *
 * License for BK-JOB蓝鲸智云作业平台:
 *
 *
 * Terms of the MIT License:
 * ---------------------------------------------------
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
 * to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of
 * the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
-->

<template>
	<div class="task-step-rolling">
		<jb-form-item :label="$t('滚动执行')">
			<bk-switcher
				theme="primary"
				:value="formData[enabledField]"
				@change="handleRollingEnableChange"
			/>
		</jb-form-item>
		<div v-if="formData[enabledField]">
			<jb-form-item
				ref="expr"
				:label="$t('滚动策略')"
				:property="exprField"
				required
				:rules="rollingExprRule"
			>
				<div class="form-item-content rolling-expr-field">
					<bk-input :value="formData[exprField]" @change="handleRollingExprChange" />
					<div v-if="tips" class="strategy-tips">
						{{ tips }}
					</div>
					<div v-if="errorMessage" class="strategy-error">
						{{ errorMessage }}
					</div>
					<div
						class="rolling-expr-gudie-btn"
						:class="{
							active: isShowGuide,
						}"
						@click="handleShowGuide"
					>
						<icon v-bk-tooltips="`${$t('查看使用指引')}`" type="help-document-fill" />
					</div>
				</div>
			</jb-form-item>
			<jb-form-item ref="rollingMode" :label="$t('滚动机制')" required>
				<bk-select
					class="form-item-content"
					:clearable="false"
					:value="formData[modeField]"
					@change="handleRollingModeChange"
				>
					<bk-option :id="1" :name="$t('默认（执行失败则暂停）')" />
					<bk-option :id="2" :name="$t('忽略失败，自动滚动下一批')" />
					<bk-option :id="3" :name="$t('不自动，每批次都人工确认')" />
				</bk-select>
			</jb-form-item>
		</div>
		<element-teleport v-if="isShowGuide" target="#rollingExprGuide">
			<guide @on-close="handleHideGuide" />
		</element-teleport>
	</div>
</template>
<script>
import _ from 'lodash';

import rollingExprParse from '@utils/rolling-expr-parse';

import I18n from '@/i18n';

import Guide from './guide';

export default {
	name: '',
	components: {
		Guide,
	},
	props: {
		enabledField: {
			type: String,
			required: true,
		},
		exprField: {
			type: String,
			required: true,
		},
		modeField: {
			type: String,
			required: true,
		},
		formData: {
			type: Object,
			default: () => ({}),
		},
	},
	data() {
		return {
			isShowGuide: false,
			tips: '',
			errorMessage: '',
		};
	},
	computed: {
		/**
		 * @desc 滚动策略验证规则，不需要滚动执行时不进行验证
		 * @returns { Array }
		 */
		rollingExprRule() {
			if (!this.formData[this.enabledField]) {
				return [];
			}
			return [
				{
					validator: value => {
						this.errorMessage = '';
						return Boolean(value);
					},
					message: I18n.t('滚动策略必填'),
					trigger: 'blur',
				},
				{
					validator: value => {
						this.errorMessage = '';
						try {
							rollingExprParse(value);
							return true;
						} catch {
							return false;
						}
					},
					message: I18n.t('滚动策略格式不正确'),
					trigger: 'blur',
				},
			];
		},
	},
	watch: {
		formData: {
			handler(formData) {
				this.validatorExpr(formData[this.exprField]);
			},
			immediate: true,
			deep: true,
		},
	},
	methods: {
		/**
		 * @desc 验证滚动规则
		 * @param { String } expr
		 */
		validatorExpr(expr) {
			try {
				this.errorMessage = '';
				this.tips = rollingExprParse(expr);
			} catch (error) {
				this.tips = '';
				this.errorMessage = error.message;
			}
		},
		/**
		 * @desc 是否启用滚动
		 * @param { Boolean } enabled
		 */
		handleRollingEnableChange(enabled) {
			this.$emit('on-change', this.enabledField, enabled);
			if (!enabled) {
				this.tips = '';
				this.errorMessage = '';
				this.$emit('on-reset', {
					[this.exprField]: '',
					[this.modeField]: 1,
				});
			}
			// 滚动策略默认 10%
			this.$emit('on-reset', {
				[this.exprField]: '10%',
				[this.modeField]: 1,
			});
			this.$nextTick(() => {
				if (this.formData[this.enabledField]) {
					this.$refs.rollingMode.$el.scrollIntoView();
				}
			});
		},
		/**
		 * @desc 滚动策略更新
		 * @param { String } expr 滚动表达式
		 */
		handleRollingExprChange: _.debounce(function (expr) {
			this.$refs.expr && this.$refs.expr.clearValidator();
			this.validatorExpr(expr);
			this.$emit('on-change', this.exprField, expr);
		}, 20),
		/**
		 * @desc 滚动机制更新
		 * @param { Number } rollingMode
		 */
		handleRollingModeChange(rollingMode) {
			this.$emit('on-change', this.modeField, rollingMode);
		},
		handleShowGuide() {
			this.isShowGuide = !this.isShowGuide;
		},
		handleHideGuide() {
			this.isShowGuide = false;
		},
	},
};
</script>
<style lang="postcss">
.task-step-rolling {
	display: block;

	.rolling-expr-field {
		position: relative;

		.form-error-tip {
			display: none;
		}

		.rolling-expr-gudie-btn {
			position: absolute;
			top: 0;
			right: -22px;
			font-size: 14px;
			color: #979ba5;
			cursor: pointer;

			&:hover,
			&.active {
				color: var(--color-primary);
			}
		}
	}

	.strategy-tips {
		margin-top: 4px;
		font-size: 12px;
		line-height: 16px;
		color: #979ba5;
	}

	.strategy-error {
		margin-top: 4px;
		font-size: 12px;
		line-height: 18px;
		color: #ea3636;
	}
}
</style>
